CN112112702A - Valve rotating mechanism and engine - Google Patents
Valve rotating mechanism and engine Download PDFInfo
- Publication number
- CN112112702A CN112112702A CN202010979337.7A CN202010979337A CN112112702A CN 112112702 A CN112112702 A CN 112112702A CN 202010979337 A CN202010979337 A CN 202010979337A CN 112112702 A CN112112702 A CN 112112702A
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- valve
- rotating
- seat
- inclined surface
- spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/18—Component parts, details, or accessories not provided for in preceding subgroups of this group
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to the technical field of engines, in particular to a valve rotating mechanism and an engine, wherein the valve rotating mechanism comprises a valve rotating lower seat which is arranged on a cylinder cover and is provided with a first inclined plane; the rotating assembly is arranged on the valve rotating lower seat, and a second inclined surface matched with the first inclined surface is arranged on the rotating assembly; the valve spring seat is arranged on one side, away from the valve rotating lower seat, of the rotating assembly; the elastic resetting assembly is arranged between the rotary lower valve seat and the valve spring seat, one end of the elastic resetting assembly is abutted against the rotary lower valve seat, and the other end of the elastic resetting assembly is abutted against the valve spring seat. The invention can ensure the effective rotation of the air valve.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a valve rotating mechanism and an engine.
Background
With the development of the times, higher demands have been made on combustion and emissions of internal combustion engines in order to prevent further deterioration of the environment. As the rotation speed of the engine increases, higher requirements are necessarily put on various parts of the engine. The valve is used as a core part, and a certain rotation function is required in the high-speed linear operation process to ensure that the valve is uniformly abraded. However, in the steel ball type valve rotating mechanism in the prior art, the steel ball is in point contact with the disc spring, and the abrasion is serious during working, so that the valve cannot rotate effectively.
Therefore, a valve rotating mechanism and an engine are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a valve rotating mechanism and an engine, which can ensure effective rotation of a valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
a valve rotating mechanism comprising:
the lower valve rotating seat is arranged on the cylinder cover and is provided with a first inclined plane;
the rotating assembly is arranged on the valve rotating lower seat, and a second inclined surface matched with the first inclined surface is arranged on the rotating assembly;
the valve spring seat is arranged on one side, away from the valve rotating lower seat, of the rotating assembly;
the resetting elastic assembly is arranged between the valve rotating lower seat and the valve spring seat, one end of the resetting elastic assembly is abutted against the valve rotating lower seat, and the other end of the resetting elastic assembly is abutted against the valve spring seat;
the rotating assembly is configured to: when the valve is opened, the rotating assembly moves towards the rotary lower seat of the valve along the first inclined plane under the pressure of the valve spring seat and drives the valve spring seat to rotate for a certain angle along the first rotating direction, when the valve is closed, the valve spring seat is separated from the rotating assembly under the action of the reset elastic assembly, and the rotating assembly resets.
Further, the rotating assembly comprises a rotating piece, the rotating piece is arranged on the valve rotating lower seat, the second inclined plane matched with the first inclined plane is arranged on the rotating piece, and the valve spring seat is arranged on one side, deviating from the valve rotating lower seat, of the rotating piece.
Further, the rotating assembly further comprises a first return spring, one end of the first return spring is abutted to the rotating piece, the other end of the first return spring is abutted to the lower valve rotating seat, and when the rotating piece moves towards the lower valve rotating seat along the first inclined plane, the first return spring can be compressed.
Furthermore, a first fixed block is arranged on the valve rotating lower seat, and the first inclined plane is arranged on the first fixed block.
Furthermore, one side of the rotating piece, which faces the lower seat of the valve rotation, is provided with a second fixed block, the second fixed block is provided with a second inclined surface, the second inclined surface is matched with the first inclined surface, and the second fixed block can move relative to the first inclined surface through the second inclined surface.
Furthermore, the first fixed block is arranged along the circumferential interval of the valve rotating lower seat in a plurality, and the second fixed block is arranged along the circumferential interval of the rotating piece in a plurality, and is arranged in one-to-one correspondence with the first fixed block.
Further, the valve rotating lower seat comprises a first ring part and a second ring part which are coaxially arranged, the first ring part is located on the outer side of the second ring part, and the first fixing block is arranged between the first ring part and the second ring part.
Further, the elastic resetting assembly comprises a second resetting spring, a positioning groove is formed in the second ring portion, the second resetting spring is arranged in the positioning groove, and one end of the second resetting spring is abutted to the valve spring seat.
Furthermore, the elastic resetting assembly comprises a disc spring and a tappet, one end of the disc spring is abutted to the lower rotary seat of the valve, the tappet is arranged in the first annular part in a penetrating manner, one end of the tappet is abutted to the disc spring, and the other end of the tappet is abutted to the valve spring seat.
An engine is provided with the valve rotating mechanism.
The invention has the beneficial effects that:
according to the valve rotating mechanism provided by the invention, the first inclined plane is arranged on the valve rotating lower seat, the rotating assembly is arranged on the valve rotating lower seat, the second inclined plane matched with the first inclined plane is arranged on the rotating assembly, so that the rotating assembly can rotate a certain angle relative to the valve rotating lower seat while moving along the first inclined plane, the reset elastic assembly is arranged between the valve spring seat and the valve rotating lower seat, when the valve is opened, the valve spring seat drives the rotating assembly to move towards the valve rotating lower seat, and meanwhile, the rotating assembly drives the valve spring seat to rotate so as to drive the valve assembly to rotate; after the valve is closed, the valve spring seat is separated from the contact with the rotating assembly under the action of the elastic resetting assembly, the rotating assembly resets, the valve spring seat is prevented from being driven to rotate reversely when the rotating assembly resets, and through the arrangement, the point contact of the steel balls and the belleville springs in the valve rotating mechanism is changed into the surface contact of the rotating assembly and the first inclined surface arranged on the valve rotating lower seat, so that the effective rotation of the valve is ensured.
The engine provided by the invention is provided with the valve rotating mechanism, so that the effective rotation of the valve can be ensured.
Drawings
Fig. 1 is a schematic view of a valve rotating mechanism according to one embodiment;
FIG. 2 is an exploded view of a valve rotating mechanism according to one embodiment;
FIG. 3 is a partial assembly view of a valve rotating mechanism according to one embodiment;
fig. 4 is a sectional view of a valve rotating mechanism according to a second embodiment;
fig. 5 is an exploded view of a valve rotating mechanism according to the second embodiment.
In the figure:
1. the valve rotates the lower seat; 11. a first ring portion; 12. a second ring portion; 13. a first fixed block; 131. a first inclined plane; 2. a rotating assembly; 21. a valve spring seat; 22. a rotating member; 221. a second fixed block; 2211. a second inclined plane; 23. a first return spring; 3. a second return spring; 4. a slider; 5. a disc spring; 6. and (4) a tappet.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
In order to ensure that the valve on the engine can rotate effectively, as shown in fig. 2-3, the invention provides a valve rotating mechanism, which comprises: the valve rotating lower seat comprises a valve rotating lower seat 1, a rotating assembly 2, a valve spring seat 21 and a reset elastic assembly, wherein the valve rotating lower seat 1 is arranged on a cylinder cover, and a first inclined plane 131 is arranged on the valve rotating lower seat 1; the rotating assembly 2 is arranged on the valve rotating lower seat 1 and is provided with a second inclined surface 2211 matched with the first inclined surface 131, so that the rotating assembly 2 can rotate for a certain angle relative to the valve rotating lower seat 1 while moving along the first inclined surface 131; the valve spring seat 21 is arranged on one side of the rotating assembly 2, which is far away from the valve rotating lower seat 1; the reset elastic component is arranged between the valve rotary lower seat 1 and the valve spring seat 21, one end of the reset elastic component is abutted against the valve rotary lower seat 1, and the other end of the reset elastic component is abutted against the valve spring seat 21;
the rotating assembly 2 is configured to: when the valve is opened, the rotating assembly 2 moves towards the valve rotating lower seat 1 along the first inclined surface 131 under the pressure of the valve spring seat 21, and meanwhile, the rotating assembly 2 can rotate for a certain angle along the first rotating direction relative to the valve rotating lower seat 1 and can drive the valve to rotate together with the valve spring seat 21; when the valve is closed, the valve spring seat 21 is separated from the rotating assembly 2 under the action of the return elastic assembly, and the rotating assembly 2 returns.
After the valve is opened, the valve spring seat 21 drives the rotating component 2 to move towards the valve rotating lower seat 1, and meanwhile, the rotating component 2 drives the valve spring seat 21 to rotate so as to drive the valve component to rotate; after the valve is closed, the valve spring seat 21 is separated from the contact with the rotating component 2 under the action of the elastic resetting component, the rotating component 2 is reset, the valve spring seat 21 is prevented from being driven to rotate reversely when the rotating component 2 is reset, and through the arrangement, the point contact of the steel balls and the belleville springs in the valve rotating mechanism is changed into the surface contact of the rotating component 2 and the first inclined surface 131 arranged on the valve rotating lower seat 1, so that the effective rotation of the valve is ensured.
Further, the rotating assembly 2 includes a rotating member 22, the rotating member 22 is disposed on the valve rotating lower seat 1, a second inclined surface 2211 matched with the first inclined surface 131 is disposed on the rotating member 22, and the valve spring seat 21 is disposed on one side of the rotating member 22 departing from the valve rotating lower seat 1. The valve spring seat 21 is used for positioning and installing a valve spring, after the valve is opened, the valve spring is compressed to enable the valve spring seat 21 to move downwards, the rotating piece 22 is driven to move downwards along the first inclined plane 131, meanwhile, the rotating piece 22 rotates and rotates relative to the valve rotating lower seat 1, the valve spring seat 21 is driven to rotate, the valve spring seat 21 drives the valve spring to further drive the valve assembly to rotate, and therefore the rotation of the valve is achieved.
Further, the rotating assembly 2 further comprises a first return spring 23, the first return spring 23 is horizontally arranged, one end of the first return spring is abutted to the rotating piece 22, the other end of the first return spring is abutted to the valve rotating lower seat 1, and when the rotating piece 22 moves towards the valve rotating lower seat 1 along the first inclined surface 131, the first return spring 23 can be compressed. When the valve is closed, the rotary member 22 is no longer subjected to pressure from the valve spring seat 21, and the first return spring 23 is under its own restoring force, so that the rotary member 22 moves along the first inclined surface 131 in a direction away from the valve rotation lower seat 1, while returning in a second rotational direction opposite to the first rotational direction with respect to the valve rotation lower seat 1.
In other embodiments, the first return spring 23 may also be vertically disposed, one end of the first return spring is abutted to the valve rotating lower seat 1, the other end of the first return spring is abutted to the rotating member 22, when the rotating member 22 moves downward, the first return spring 23 is compressed, and after the valve is closed, the first return spring 23 drives the rotating member 22 to return.
Further, a first fixing block 13 is arranged on the valve rotating lower seat 1, a first inclined surface 131 is arranged on the first fixing block 13, and the rotating member 22 can move relative to the first inclined surface 131. By providing the first inclined surface 131, the rotary member 22 can move along the first inclined surface 131, so that the rotary member can rotate at a certain angle relative to the valve rotary lower seat 1 while moving up and down. And the point contact in the prior art is changed into surface contact through the first inclined surface 131, so that the problem that the valve cannot rotate effectively due to abrasion between the rotating piece 22 and the valve rotating lower seat 1 is avoided.
Further, a second fixing block 221 is disposed on a side of the rotating member 22 facing the valve rotating lower seat 1, a second inclined surface 2211 is disposed on the second fixing block 221, the second inclined surface 2211 is matched with the first inclined surface 131, and the second fixing block 221 can move relative to the first inclined surface 131 through the second inclined surface 2211. By the second inclined surface 2211 and the first inclined surface 131, the friction between the rotary piece 22 and the valve rotary lower seat 1 is made to be surface-to-surface friction, stress concentration is reduced, and abrasion is reduced.
Further, the valve rotating lower seat 1 comprises a first ring portion 11 and a second ring portion 12 which are coaxially arranged, the first ring portion 11 is located on the outer side of the second ring portion 12, a first fixing block 13 is arranged between the first ring portion 11 and the second ring portion 12, one end of a first return spring 23 is abutted to one side, deviating from the first inclined surface 131, of the first fixing block 13, the other end of the first return spring is abutted to one end, deviating from the second inclined surface 2211, of the second fixing block 221, the first return spring 23 is located between the first ring portion 11 and the second ring portion 12, the position of the first return spring 23 can be limited, and normal work of the first return spring 23 is guaranteed.
Further, the first fixing blocks 13 are provided in plurality at intervals in the circumferential direction of the valve rotating lower seat 1, and the second fixing blocks 221 are provided in plurality at intervals in the circumferential direction of the rotating member 22, and are provided in one-to-one correspondence with the first fixing blocks 13. The first fixing blocks 13 and the second fixing blocks 221 which are matched with each other are arranged to ensure that the rotating piece 22 rotates stably and smoothly relative to the lower valve rotating seat 1, so that the valve can work normally and effectively.
Further, the elastic resetting component comprises a second resetting spring 3, a positioning groove is formed in the second ring part 12, the second resetting spring 3 is arranged in the positioning groove, and one end of the second resetting spring 3 is abutted to the valve spring seat 21. The valve spring seat 21 can be ensured to be rapidly reset under the action of the restoring force of the second return spring 3 after the valve is closed by arranging the second return spring 3. Specifically, the constant head tank sets up a plurality ofly along the circumference of second ring portion 12, and second reset spring 3 sets up with the constant head tank one-to-one, and all is provided with second reset spring 3 in every constant head tank, guarantees that valve spring seat 21 resets fast. Specifically, be provided with slider 4 in second reset spring 3's upper end, slider 4 can follow the constant head tank and slide, and the upper end and the 21 butt of valve spring seat of slider 4 can lead to second reset spring 3 through setting up slider 4, prevent that second reset spring 3 from buckling at motion in-process self axis relatively to unable effective work.
The working process of the valve rotating mechanism provided by the embodiment is as follows:
when the valve is opened, under the action of the valve spring, the valve spring seat 21 is abutted against the rotating piece 22, the rotating piece 22 moves relative to the valve rotating lower seat 1 and rotates for a certain angle, the second return spring 3 is compressed, and meanwhile, the rotating piece 22 drives the valve spring seat 21 so as to drive the valve assembly to rotate for a certain angle; when the valve is closed, the acting force of the valve spring disappears, the valve spring seat 21 is separated from the rotating piece 22 under the action of the second return spring 3, and the rotating piece 22 is reset under the action of the first return spring 23; the process is repeated when the valve is opened next time, and the rotating piece 22 drives the valve spring seat 21 to intermittently rotate, so that the rotation of the valve assembly is realized.
Example two
As shown in fig. 4 and 5, the greatest difference between the second embodiment and the first embodiment lies in the elastic return component, in this embodiment, the elastic return component includes a disc spring 5 and a tappet 6, one end of the disc spring 5 abuts against the valve rotating lower seat 1, the tappet 6 is inserted into the first ring part 11, one end abuts against the disc spring 5, and the other end abuts against the valve spring seat 21. Through setting up dish spring 5 can guarantee that valve spring seat 21 drives the motion of tappet 6 under the effect of the restoring force of dish spring 5 after the valve closes, impels valve spring seat 21 to reset fast.
The working process of the valve rotating mechanism provided by the embodiment is as follows:
when the valve is opened, under the action of the valve spring, the valve spring seat 21 is abutted against the rotating piece 22, the rotating piece 22 moves relative to the lower valve rotating seat 1 and rotates for a certain angle, the disc spring 5 is compressed, and meanwhile, the rotating piece 22 drives the valve spring seat 21 so as to drive the valve assembly to rotate for a certain angle; when the valve is closed, the acting force of the valve spring disappears, the valve spring seat 21 is separated from the rotating part 22 under the action of the disc spring 5 and the tappet 6, and the rotating part 22 is reset under the action of the first return spring 23; the process is repeated when the valve is opened next time, and the rotating piece 22 drives the valve spring seat 21 to intermittently rotate, so that the rotation of the valve assembly is realized.
EXAMPLE III
This embodiment provides an engine provided with a valve rotating mechanism as in the first and second embodiments, capable of ensuring effective rotation of a valve.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A valve rotating mechanism characterized by comprising:
the lower valve rotating seat (1) is arranged on the cylinder cover, and a first inclined plane (131) is arranged on the lower valve rotating seat (1);
the rotating assembly (2) is arranged on the valve rotating lower seat (1) and is provided with a second inclined surface (2211) matched with the first inclined surface (131);
the valve spring seat (21) is arranged on one side, away from the valve rotating lower seat (1), of the rotating assembly (2);
the resetting elastic component is arranged between the valve rotating lower seat (1) and the valve spring seat (21), one end of the resetting elastic component is abutted against the valve rotating lower seat (1), and the other end of the resetting elastic component is abutted against the valve spring seat (21);
the rotating assembly (2) is configured to: when the valve is opened, the rotating assembly (2) is pressed by the valve spring seat (21) to move towards the valve rotating lower seat (1) along the first inclined surface (131) and drive the valve spring seat (21) to rotate for a certain angle along a first rotating direction, when the valve is closed, the valve spring seat (21) is separated from the rotating assembly (2) under the action of the reset elastic assembly, and the rotating assembly (2) resets.
2. A valve rotating mechanism according to claim 1, characterized in that the rotating assembly (2) comprises a rotating member (22), the rotating member (22) is arranged on the valve rotating lower seat (1), the second inclined surface (2211) matched with the first inclined surface (131) is arranged on the rotating member (22), and the valve spring seat (21) is arranged on the side of the rotating member (22) facing away from the valve rotating lower seat (1).
3. A valve rotation mechanism according to claim 2, characterized in that the rotating assembly (2) further comprises a first return spring (23), one end of the first return spring (23) abuts against the rotating member (22) and the other end abuts against the valve rotation lower seat (1), and the first return spring (23) can be compressed when the rotating member (22) moves towards the valve rotation lower seat (1) along the first inclined surface (131).
4. A valve rotating mechanism according to claim 2, wherein the valve rotating lower seat (1) is provided with a first fixed block (13), and the first fixed block (13) is provided with the first inclined surface (131).
5. A valve rotating mechanism according to claim 4, characterized in that a second fixing block (221) is arranged on the side of the rotating member (22) facing the valve rotating lower seat (1), the second fixing block (221) is provided with the second inclined surface (2211), the second inclined surface (2211) is matched with the first inclined surface (131), and the second fixing block (221) can move relative to the first inclined surface (131) through the second inclined surface (2211).
6. A valve rotating mechanism according to claim 5, wherein the first fixing blocks (13) are provided in plurality at intervals in the circumferential direction of the valve rotating lower seat (1), and the second fixing blocks (221) are provided in plurality at intervals in the circumferential direction of the rotating member (22) in one-to-one correspondence with the first fixing blocks (13).
7. A valve rotation mechanism according to claim 4, characterized in that the valve rotation lower seat (1) comprises a first ring part (11) and a second ring part (12) which are coaxially arranged, the first ring part (11) being located outside the second ring part (12), and the first fixing block (13) being arranged between the first ring part (11) and the second ring part (12).
8. A valve rotating mechanism according to claim 7, characterized in that the return elastic assembly comprises a second return spring (3), a positioning groove is formed in the second ring part (12), the second return spring (3) is arranged in the positioning groove, and one end of the second return spring (3) abuts against the valve spring seat (21).
9. A valve rotating mechanism according to claim 7, wherein the return elastic assembly comprises a disc spring (5) and a tappet (6), one end of the disc spring (5) abuts against the valve rotating lower seat (1), the tappet (6) is arranged in the first ring part (11) in a penetrating manner, one end of the tappet abuts against the disc spring (5), and the other end of the tappet abuts against the valve spring seat (21).
10. An engine characterized by being provided with a valve rotating mechanism according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979337.7A CN112112702B (en) | 2020-09-17 | 2020-09-17 | Valve rotating mechanism and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979337.7A CN112112702B (en) | 2020-09-17 | 2020-09-17 | Valve rotating mechanism and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112112702A true CN112112702A (en) | 2020-12-22 |
| CN112112702B CN112112702B (en) | 2021-12-21 |
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ID=73799784
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010979337.7A Active CN112112702B (en) | 2020-09-17 | 2020-09-17 | Valve rotating mechanism and engine |
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| Country | Link |
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| CN (1) | CN112112702B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875740A (en) * | 1955-08-29 | 1959-03-03 | James M Leake | Stamped valve rotator cage |
| JPS5341624A (en) * | 1976-07-06 | 1978-04-15 | Teves Thompson Gmbh | Valve rotating apparatus |
| JPH0821213A (en) * | 1994-07-06 | 1996-01-23 | Nissan Motor Co Ltd | Valve system of engine |
| US20030037742A1 (en) * | 2000-03-28 | 2003-02-27 | Michael Engesser | Valve rotating device |
| CN2835573Y (en) * | 2005-11-23 | 2006-11-08 | 章升谊 | Lower arranged valve rotating mechanism of internal combustion engine |
| CN102797530A (en) * | 2012-08-29 | 2012-11-28 | 湖南天雁机械有限责任公司 | Belleville spring with centering ring groove |
| CN106030056A (en) * | 2014-02-21 | 2016-10-12 | 丰田自动车株式会社 | Valve rotation device |
-
2020
- 2020-09-17 CN CN202010979337.7A patent/CN112112702B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2875740A (en) * | 1955-08-29 | 1959-03-03 | James M Leake | Stamped valve rotator cage |
| JPS5341624A (en) * | 1976-07-06 | 1978-04-15 | Teves Thompson Gmbh | Valve rotating apparatus |
| JPH0821213A (en) * | 1994-07-06 | 1996-01-23 | Nissan Motor Co Ltd | Valve system of engine |
| US20030037742A1 (en) * | 2000-03-28 | 2003-02-27 | Michael Engesser | Valve rotating device |
| CN2835573Y (en) * | 2005-11-23 | 2006-11-08 | 章升谊 | Lower arranged valve rotating mechanism of internal combustion engine |
| CN102797530A (en) * | 2012-08-29 | 2012-11-28 | 湖南天雁机械有限责任公司 | Belleville spring with centering ring groove |
| CN106030056A (en) * | 2014-02-21 | 2016-10-12 | 丰田自动车株式会社 | Valve rotation device |
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| Publication number | Publication date |
|---|---|
| CN112112702B (en) | 2021-12-21 |
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